<!DOCTYPE html>
<html>
<head>
	<title>Snake</title>
	<meta charset="utf-8">
	<style type="text/css">
		html, body {
			height: 100%;
			overflow: hidden;
		}
		body {
			display: flex;
			justify-content: center;
			align-items: center;
		}
		#snake {
			width: 300px;
			height: 200px;
			border: 1px solid;
			text-align: center;
			line-height: 40px;
		}
		#snake > div {
			width: 10px;
			height: 10px;
			border-radius: 50%;
			float: left;
		}
	</style>
</head>
<body>
<div id="snake">
</div>
</body>
<script src="./snake.js"></script>
</html>